Kari Voutilainen’s Tourbillon-6 is embellished by a stunning engine-turned guilloche silver dial on the outside and a direct-impulse escapement on the inside, whose 14 mm tourbillon cage is so large the hours and minutes have to be off-center. www.voutilainen.ch/site

And don’t miss Part 3 of this three part series next week, with tourbillons from Greubel Forsey, Blancpain, Vianney Halter, Girard-Perregaux and Hautlence (not a tourbillon, but a rotating escapement too cool to miss.)